Description
Allocation of resources without limits or throttling vulnerability in Apache Struts. When no fixed locale is configured, the locale used for localized-text lookups is taken from the incoming request, allowing an unauthenticated remote client to cause the framework's internal localized-text caches to grow without bound and exhaust the Java heap, denying service to other users. Applications that configure a fixed locale are not affected.
This issue affects Apache Struts: from 2.0.0 through 2.3.37, from 2.5.0 through 2.5.33, from 6.0.0 through 6.10.0, from 7.0.0 through 7.2.1.
Users are recommended to upgrade to version 6.11.0 or 7.3.0, which fixes the issue.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Apache Software Foundation | Apache Struts | 2.0.0 – ≤ 2.3.37, 2.5.0 – ≤ 2.5.33, 6.0.0 – ≤ 6.10.0, 7.0.0 – ≤ 7.2.1 | — |
Advisories 5
- NCSC-2026-0485 Kwetsbaarheden verholpen in SAP-producten NCSC-NL (Netherlands) · Nov 12, 2026
- WID-SEC-2026-4056 Atlassian Produkte (Bamboo, Bitbucket, Confluence, Crucible, Fisheye und Jira): Mehrere Schwachstellen BSI CERT-Bund (WID) · Nov 11, 2026
- WID-SEC-2026-4420 SAP Patch Day November 2026: Mehrere Schwachstellen BSI CERT-Bund (WID) · Nov 9, 2026
- WID-SEC-2026-3595 IBM QRadar SIEM: Mehrere Schwachstellen BSI CERT-Bund (WID) · Nov 2, 2026
- WID-SEC-2026-2848 Apache Struts: Mehrere Schwachstellen BSI CERT-Bund (WID) · Sep 21, 2026
References
- https://cwiki.apache.org/confluence/display/WW/S2-074 vendor-advisory